This is the original Ascii Generator Windows application, which was written in Borland C++ Builder some time around 2000-2002.

The newer Ascgen 2 (or Ascgen dotNet as it was called) was written completely from scratch a few years later, however the basic method for generating images is the same. While the output is not as good, it actually has a few features that never made it into Ascgen 2 for various technical reasons.